Harold Everett Miller, Jr

Title: Harold Everett Miller, Jr.: Innovator in Photorefractive Devices

Introduction

Harold Everett Miller, Jr. is a notable inventor based in Westminster, California. He has made significant contributions to the field of photorefractive devices, particularly through his innovative patent that enhances the longevity and efficiency of holographic gratings.

Latest Patents

Miller holds a patent for the "Fabrication and applications of long-lifetime, holographic gratings." This invention provides substantial improvements in the lifetimes of photorefractive devices by controlling electron migration. The patent addresses the decay of gratings in photorefractive materials due to diffusion and other effects. It introduces a new class of photorefractive devices that utilize compensating electronic and ionic gratings. These gratings, while having relatively low efficiency, are arranged to be reflective in a wavelength band outside the photo-excitation band of the photorefractive material, such as using an infrared operating wavelength. The invention achieves longer lifetimes in high-efficiency gratings through constant or periodic illumination of photorefractive materials, ensuring a uniform charged distribution of electrons and maintaining the ionic backbone grating.

Career Highlights

Miller is associated with Accuwave Corporation, where he applies his expertise in photorefractive technology. His work has contributed to advancements in the field, particularly in enhancing the performance and durability of photorefractive devices.

Collaborations

Miller has collaborated with notable colleagues, including George A Rakuljic and Victor Leyva. These partnerships have fostered innovation and development in their shared field of expertise.

Conclusion

Harold Everett Miller, Jr. is a distinguished inventor whose work in photorefractive devices has led to significant advancements in technology. His contributions continue to influence the field and pave the way for future innovations.